Which of the Following Proteins Found in Myofilaments Contains the Cross-Bridges

Question

Which of the following proteins found in myofilaments contains the cross-bridges?
A)Myosin
B)Actin
C)Tropomyosin
D)Troponin

Accepted Answer

Myosin is the protein that contains the cross-bridges. The heads of myosin molecules bind to actin filaments to form cross-bridges that are responsible for muscle contraction.